Yingchun Cai

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Zhengzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Polymer injection method for blocking piping in dikes and dams
- Patent number 8,293,325
- Issue date Oct 23, 2012
- Zhengzhou Uretek Technology Ltd.
- Fuming Wang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Polymer injection method for blocking piping in dikes and dams
- Publication number 20110104372
- Publication date May 5, 2011
- Zhengzhou Uretek Technology Ltd.
- Fuming Wang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING